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Product Detailed Parameters
- Description：MONOSTABLE MULTIVIBRATORS WITH S
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Logic Type：Monostable
- Independent Circuits：1
- Schmitt Trigger Input：Yes
- Propagation Delay：50 ns
- Current - Output High, Low：16mA, 400µA
- Voltage - Supply：4.5 V ~ 5.5 V
- Operating Temperature：-55°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：14-CFlatPack
- Supplier Device Package：14-CFP
- Grade：-
- Qualification：-
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Overview
The SNJ54121W is a monostable multivibrator manufactured by Texas Instruments, designed for military and defense applications. It operates within the SN54L121 series using TTL/H/L logic technology. The device features a hermetically sealed ceramic dual in-line package (CFP) with 14 pins. It supports an operating temperature range from -55°C to +125°C. The component is classified as QML certified for Military and Defense Applications.
Feature Summary
- Hermetically sealed ceramic construction ensures reliability in harsh environments
- Monostable multivibrator functionality generates precise pulse widths
- Military-grade qualification meets stringent defense standards
Applications
- Military electronic systems requiring high reliability
- Defense communication equipment
- Aerospace instrumentation circuits
Procurement Notes
Verify the specific ordering suffix and revision level against current TI documentation before procurement. Confirm that the CFP package dimensions match the target PCB footprint. Ensure environmental compliance requirements align with the non-RoHS status typical of military-grade ceramic packages. Validate supply chain authenticity through authorized distributors.
Selection Notes
Select this component when military-grade radiation hardness and wide temperature operation are required. Compare pin compatibility with existing designs if replacing older SN54 variants. Consider the CFP package size constraints during mechanical layout. Verify power supply requirements match the TTL/H/L series specifications.
Part Context
This part belongs to the SN54 family, which is distinct from the commercial SN74 series due to its extended temperature range and military certification. It serves as a direct replacement for other SN54L121 variants in legacy military hardware. The W suffix specifically denotes the ceramic flat package configuration.
Replacement Considerations
SNJ54121J
FAQ
Is the SNJ54121W RoHS compliant?
No, military-grade ceramic packages like the SNJ54121W are typically exempt from RoHS requirements.
What does the 'W' suffix indicate?
The 'W' suffix indicates the Ceramic Flat Package (CFP) form factor with 14 pins.
